Search for heavy resonances decaying to a Z boson and a photon in pp collisions at s=13 TeV with the ATLAS detector

doi:10.1016/j.physletb.2016.11.005

Physics Letters B

Volume 764, 10 January 2017, Pages 11-30

https://doi.org/10.1016/j.physletb.2016.11.005 Get rights and content

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Abstract

This Letter presents a search for new resonances with mass larger than 250 GeV, decaying to a Z boson and a photon. The dataset consists of an integrated luminosity of 3.2 fb⁻¹ of pp collisions collected at $\sqrt{s} = 13 TeV$ with the ATLAS detector at the Large Hadron Collider. The Z bosons are identified through their decays either to charged, light, lepton pairs ( $e^{+} e^{-}$ , $μ^{+} μ^{-}$ ) or to hadrons. The data are found to be consistent with the expected background in the whole mass range investigated and upper limits are set on the production cross section times decay branching ratio to Zγ of a narrow scalar boson with mass between 250 GeV and 2.75 TeV.

Cited by (0)

^au: Also affiliated with PKU-CHEP.

^a: Also at Department of Physics, King's College London, London, United Kingdom.

^b: Also at Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan.

^c: Also at Novosibirsk State University, Novosibirsk, Russia.

^d: Also at TRIUMF, Vancouver BC, Canada.

^e: Also at Department of Physics & Astronomy, University of Louisville, Louisville, KY, United States of America.

^f: Also at Department of Physics, California State University, Fresno CA, United States of America.

^g: Also at Department of Physics, University of Fribourg, Fribourg, Switzerland.

^h: Also at Departament de Fisica de la Universitat Autonoma de Barcelona, Barcelona, Spain.

ⁱ: Also at Departamento de Fisica e Astronomia, Faculdade de Ciencias, Universidade do Porto, Portugal.

^j: Also at Tomsk State University, Tomsk, Russia.

^k: Also at Universita di Napoli Parthenope, Napoli, Italy.

^l: Also at Institute of Particle Physics (IPP), Canada.

^m: Also at National Institute of Physics and Nuclear Engineering, Bucharest, Romania.

ⁿ: Also at Department of Physics, St. Petersburg State Polytechnical University, St. Petersburg, Russia.

^o: Also at Department of Physics, The University of Michigan, Ann Arbor MI, United States of America.

^p: Also at Centre for High Performance Computing, CSIR Campus, Rosebank, Cape Town, South Africa.

^q: Also at Louisiana Tech University, Ruston LA, United States of America.

^r: Also at Institucio Catalana de Recerca i Estudis Avancats, ICREA, Barcelona, Spain.

^s: Also at Graduate School of Science, Osaka University, Osaka, Japan.

^t: Also at Department of Physics, National Tsing Hua University, Taiwan.

^u: Also at Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, Netherlands.

^v: Also at Department of Physics, The University of Texas at Austin, Austin TX, United States of America.

^w: Also at CERN, Geneva, Switzerland.

^x: Also at Georgian Technical University (GTU),Tbilisi, Georgia.

^y: Also at Ochadai Academic Production, Ochanomizu University, Tokyo, Japan.

^z: Also at Manhattan College, New York NY, United States of America.

^aa: Also at Hellenic Open University, Patras, Greece.

^ab: Also at Academia Sinica Grid Computing, Institute of Physics, Academia Sinica, Taipei, Taiwan.

^ac: Also at School of Physics, Shandong University, Shandong, China.

^ad: Also at Department of Physics, California State University, Sacramento CA, United States of America.

^ae: Also at Moscow Institute of Physics and Technology State University, Dolgoprudny, Russia.

^af: Also at Section de Physique, Université de Genève, Geneva, Switzerland.

^ag: Also at Eotvos Lorand University, Budapest, Hungary.

^ah: Also at Departments of Physics & Astronomy and Chemistry, Stony Brook University, Stony Brook NY, United States of America.

^ai: Also at International School for Advanced Studies (SISSA), Trieste, Italy.

^aj: Also at Department of Physics and Astronomy, University of South Carolina, Columbia SC, United States of America.

^ak: Also at School of Physics and Engineering, Sun Yat-sen University, Guangzhou, China.

^al: Also at Institute for Nuclear Research and Nuclear Energy (INRNE) of the Bulgarian Academy of Sciences, Sofia, Bulgaria.

^am: Also at Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow, Russia.

^an: Also at Institute of Physics, Academia Sinica, Taipei, Taiwan.

^ao: Also at National Research Nuclear University MEPhI, Moscow, Russia.

^ap: Also at Department of Physics, Stanford University, Stanford CA, United States of America.

^aq: Also at Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Budapest, Hungary.

^ar: Also at Flensburg University of Applied Sciences, Flensburg, Germany.

^as: Also at University of Malaya, Department of Physics, Kuala Lumpur, Malaysia.

^at: Also at CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.

^⁎: Deceased.

^⋆: E-mail address: [email protected].